

//jquery 插件的封装
(function ($) {
    $.fn.colorRed = function (opt) {
        var range, len, v = v === undefined ? 0 : parseInt(v);
        this.each(function () {
        	
            $(this).css("color","red");
            if(opt){
            	$(this).css("color",opt.color);
            }
        });
        return this;
    }
})(jQuery);